Replace the inline hand-transcribed palette with the self-contained
src/lib/avatar-palette.ts: the 20-color palette is GENERATED at module load
from an OKLCH ring config (chroma clamped to sRGB, WCAG text color per color),
so it is fully tunable and validated (min pairwise ΔE-OK ≈ 0.066).
avatarStyle() slices one cyrb53 hash of the normalized name into independent
channels: base color (20) × color-wheel scheme (analogous ±20–45° / complement
180° / triadic ±120°) × split angle (24 dirs). avatarBackgroundCss() renders a
two-stop gradient with a soft boundary. Pure, cross-platform, deterministic —
same name → same avatar everywhere, nothing persisted.
The glyph now consumes avatarStyle/avatarBackgroundCss from the module;
agent-avatar-stack no longer defines its own hash/palette.
Tests: avatar-palette.test.ts pins minPairwiseDistance ≥ 0.06, PALETTE length,
normalization, and a golden name→style slice (Backend Developer →
#a55795/#90355e/150°) so a config change that repaints every avatar can't slip
through unnoticed. client tsc clean, 30 tests pass.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
claude_code
45478098f5